A concrete mixing plant dedusting device

Abstract

The application relates to the technical field of dust removal of mixing stations, and discloses a concrete mixing station dust removal device, which comprises a dust removal mechanism; the dust removal mechanism comprises: an air inlet is arranged on the outer wall of a dust removal box, the air inlet is connected with a mixing station through a connecting pipe; an air outlet is arranged on the top of the dust removal box; a pipe body is arranged on the top of the air outlet; a frame body is arranged in the air outlet and penetrates through the air outlet; the dust removal device sucks dust from the mixing station into the dust removal box through an air pump, then the dust is blocked by a filter screen and collected in the dust removal box, dust-free air is discharged from the air outlet, when the mixing station stops working, the rod body is repeatedly rotated before the frame body and the filter screen are pulled out, the rod body drives the impact block to impact the air outlet through the force on the torsional spring between the rod body and a connecting rod, the frame body and the filter screen are oscillated, part of the dust is shaken off, dust is prevented from being too much and falling on the ground when being taken out.

Description

Technical Field

[0001] This invention relates to the field of dust removal technology for concrete mixing plants, specifically a dust removal device for concrete mixing plants. Background Technology

[0002] A concrete batching plant is mainly used in concrete construction projects. Its primary purpose is to mix and combine concrete. It can be further divided into single-unit plants and double-unit plants. As the name suggests, a single-unit plant has one mixing host, a double-unit plant has two mixing hosts, and a multi-unit plant has more than two mixing hosts. Each mixing host corresponds to one discharge port, so multi-unit and double-unit plants have more than twice the production capacity of a single-unit plant. Multi-unit and double-unit plants are named using the number of mixing hosts (HZS**), for example, 4HZS240 indicates a four-unit plant with a mixing capacity of 4*240 = 960 cubic meters per hour. A concrete batching plant is a combined unit used for centralized mixing of concrete. Due to its high degree of mechanization and automation, it produces high-quality concrete and has been widely used in modern engineering construction. However, the concrete production process generates a large amount of dust, which impacts the surrounding environment and can harm the health of workers. Therefore, dust control measures are necessary for concrete batching plants.

[0003] Currently, dust removal in concrete mixing plants typically involves installing dust collection bags on top of the raw material silos. Dust generated in the silos enters these bags, preventing it from dispersing into the air and thus achieving dust removal. However, this method is quite cumbersome to clean. Therefore, we propose a dust removal mechanism that is easier to clean. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a dust removal device for concrete mixing plants, which has the advantage of being easy to clean and solves the problem of inconvenient cleaning of dust removal devices in mixing plants.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a dust removal device for a concrete mixing plant, comprising a dust removal mechanism; the dust removal mechanism includes: an air inlet provided on the outer wall of a dust removal box, the air inlet being connected to the mixing plant via a connecting pipe; an air outlet provided on the top of the dust removal box; a pipe body provided on the top of the air outlet; a frame body provided inside the air outlet and penetrating the air outlet; a filter screen provided inside the frame body; rods provided on both sides of the air outlet; a connecting rod provided on the outer wall of the air outlet and rotatably connected to the rod body via a torsion spring; and an impact block provided on the inner wall of the rod body.

[0008] In some embodiments, the outer wall of the air outlet is provided with a groove that matches the frame, and one end of the rod is provided with a limiting block that matches the frame.

[0009] In some embodiments, the dust removal mechanism is provided with an auxiliary component, which includes: a fixed rod disposed on the outer wall of the air outlet; a slider sleeved on the fixed rod; and a connecting block disposed at the other end of the rod.

[0010] In some embodiments, a fixing block is provided at the top of the fixing rod, a top rod is provided through the fixing block, and the top rod passes through the air outlet. A spring is sleeved on the outer side wall of the top rod.

[0011] In some embodiments, the outer wall of the dust collector is provided with a door panel, the door panel is connected to the dust collector by a hinge, and the outer wall of the dust collector is rotatably connected with a limiting block two that cooperates with the door panel.

[0012] In some embodiments, the dust collector is provided with an inner cover, which is a cylindrical upper structure and a frustum lower structure.

[0013] In some embodiments, the air inlet and the air outlet are connected through the inner cover.

[0014] In some embodiments, the dust collection box is provided with a spraying assembly, the spraying assembly including: a water pipe passing through the dust collection box and the inner cover, and rotatably connected to the dust collection box via a torsion spring; a nozzle disposed at the bottom of the water pipe; a second fixing block disposed on the outer side wall of the water pipe; an auxiliary rod disposed at the top of the second fixing block; and a third limiting block disposed on the outer side wall of the dust collection box.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a dust removal device for concrete mixing plants, which has the following beneficial effects:

[0017] This dust removal device uses an air pump to draw dust from the mixing plant into a dust collection box through a connecting pipe. The dust is then blocked by a filter screen and collected in the dust collection box. Dust-free air is discharged from the outlet. When the mixing plant stops working, the filter screen needs to be cleaned to prevent severe clogging. Before pulling out the frame and filter screen, the rod is rotated repeatedly. By applying force to the torsion spring between the rod and the connecting rod, the rod drives the impact block to strike the outlet, vibrating the frame and filter screen and shaking off some of the dust to prevent excessive dust from falling to the ground when it is removed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a top sectional view of the dust collector of the present invention;

[0020] Figure 3 This is a top cross-sectional view of the air outlet structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the water pipe and auxiliary rod structure of the present invention;

[0022] Figure 5 This is an enlarged structural diagram of point A in the present invention;

[0023] Figure 6 This is a schematic diagram of the fixing rod and top rod structure of the present invention.

[0024] In the picture:

[0025] 1. Mixing plant;

[0026] 2. Dust removal mechanism; 21. Dust collection box; 211. Air inlet; 22. Connecting pipe; 23. Air outlet; 231. Groove; 232. Connecting rod; 24. Pipe body; 25. Frame body; 251. Filter screen; 26. Rod body; 261. Limiting block one; 262. Impact block; 27. Door panel; 271. Limiting block two; 28. Inner cover;

[0027] 3. Auxiliary components; 31. Fixing rod; 32. Slider; 33. Connecting block; 34. Fixing block one; 35. Top rod; 36. Spring;

[0028] 4. Spraying assembly; 41. Water pipe; 42. Sprayer head; 43. Fixing block two; 44. Auxiliary rod; 45. Limiting block three. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] In related technologies, dust removal at concrete mixing plants typically involves installing dust collection bags on top of the raw material silos. Dust generated in the silos enters these bags, preventing it from dispersing into the air and thus achieving dust removal. However, this method is quite cumbersome to clean.

[0033] To address some of the problems in the related technologies, this application provides a dust removal device for a concrete mixing plant. When cleaning is required, simply vibrate the air outlet 23 repeatedly, then pull out the frame 25 with the filter screen 251 to clean the filter screen 251. Opening the bottom door panel 27 allows for cleaning of the interior of the dust collection box 21.

[0034] This application is described below with reference to the accompanying drawings and specific embodiments:

[0035] Combination Figures 1-6 This application provides a dust removal device for a concrete mixing plant, including a dust removal mechanism 2. The dust removal mechanism 2 includes: an air inlet 211 on the outer wall of a dust collection box 21, the air inlet 211 being connected to the mixing plant 1 via a connecting pipe 22; an air outlet 23 located at the top of the dust collection box 21; a pipe body 24 located at the top of the air outlet 23; a frame body 25 located inside the air outlet 23 and penetrating through the air outlet 23; a filter screen 251 located inside the frame body 25; rods 26 located on both sides of the air outlet 23; a connecting rod 232 located on the outer wall of the air outlet 23 and rotatably connected to the rod body 26 via a torsion spring; and an impact block 262 located on the inner wall of the rod body 26.

[0036] When in use, first connect the air inlet 211 of the dust collector 21 to the mixing drum of the mixing station 1 through the connecting pipe 22. Insert the frame 25 of the filter screen 251 into the air outlet 23. Connect the pipe 24 to the air outlet 23. Use an air pump to draw dust from the mixing station 1 into the dust collector 21 through the connecting pipe 22. Then, the dust is blocked by the filter screen 251 and collected in the dust collector 21. Dust-free air is discharged from the air outlet 23. When the mixing station 1 stops working, the filter screen 251 needs to be cleaned to avoid serious clogging. Before pulling out the frame 25 and the filter screen 251, rotate the rod 26 repeatedly. By applying force to the torsion spring between the rod 26 and the connecting rod 232, the rod 26 drives the impact block 262 to hit the air outlet 23, vibrating the frame 25 and the filter screen 251 to shake off some dust and prevent excessive dust from falling to the ground when it is taken out.

[0037] In some embodiments, the outer wall of the air outlet 23 is provided with a groove 231 that matches the frame 25, and one end of the rod 26 is provided with a limiting block 261 that matches the frame 25. The edge of the frame 25 is completely hidden in the groove 231 to avoid excessive protrusion. The limiting block 261 can block and limit the frame 25 when the rod 26 is not opened, preventing the frame 25 from being pulled out at will.

[0038] In some embodiments, the dust removal mechanism 2 is provided with an auxiliary component 3, which includes: a fixed rod 31 disposed on the outer wall of the air outlet 23; a slider 32 sleeved on the fixed rod 31; and a connecting block 33 disposed at the other end of the rod 26. Sliding the slider 32 on the fixed rod 31 simultaneously squeezes and impacts the connecting block 33 of both rods 26, causing the two rods 26 to rotate together and impact the air outlet 23 upon release.

[0039] In some embodiments, a fixing block 34 is provided at the top of the fixing rod 31, and a top rod 35 is provided through the fixing block 34 and through the air outlet 23. A spring 36 is sleeved on the outer wall of the top rod 35. When the slider 32 is moved, it can not only push the connecting block 33 to rotate the rod 26, but also push the top rod 35 to move when it moves further inward, pushing out the two frames 25 with filter screens 251 inside the air outlet 23, making it convenient for workers to pull out.

[0040] In some embodiments, the outer wall of the dust collection box 21 is provided with a door panel 27, which is connected to the dust collection box 21 by a hinge. The outer wall of the dust collection box 21 is rotatably connected with a limiting block 271 that cooperates with the door panel 27. Opening the door panel 27 allows for cleaning of the dust inside the dust collection box 21.

[0041] In some embodiments, the dust collection box 21 is provided with an inner cover 28, which is a cylindrical upper structure and a frustum lower structure. When dust enters the inner cover 28, it forms a working principle similar to a cyclone separator. The rotational motion caused by the tangential introduction of airflow causes solid particles or liquid droplets with large inertial centrifugal force to be thrown towards the outer wall surface and separated. Then, the particles fall downwards and accumulate on the inner bottom surface of the dust collection box 21.

[0042] In some embodiments, a spraying assembly 4 is provided on the dust collection box 21. The spraying assembly 4 includes: a water pipe 41 passing through the dust collection box 21 and the inner cover 28, and being rotatably connected to the dust collection box 21 via a torsion spring; a nozzle 42 disposed at the bottom of the water pipe 41; a second fixing block 43 disposed on the outer side wall of the water pipe 41; an auxiliary rod 44 disposed at the top of the second fixing block 43; and a third limiting block 45 disposed on the outer side wall of the dust collection box 21.

[0043] Water pipe 41 is a metal structure. One end is connected to a rubber water pipe to pressurize and inject water into water pipe 41. Then the water is sprayed out from nozzle 42 to increase the weight and condense the dust, and help the dust inside the dust collection box 21 to be sucked away instead of being raised. At the same time, when the mixing station 1 and the dust pump are not working, when the filter screen 251 is vibrated, the rod body 26 repeatedly connects to the auxiliary rod 44 connected to the water pipe 41, causing the water pipe 41 to rotate, spraying the dust that falls in the middle part, and can also rotate back to its original position with the help of the torsion spring. The limit block 3 45 is set to prevent the water pipe 41 from rotating too much.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0045] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for a concrete mixing plant, characterized in that: Includes a dust removal mechanism (2); the dust removal mechanism (2) includes: The dust collector (21) has an air inlet (211) on its outer side wall, and the air inlet (211) is connected to the mixing station (1) through a connecting pipe (22); An air outlet (23) is located on the top of the dust collection box (21); The pipe body (24) is disposed at the top of the air outlet (23); The frame (25) is disposed inside the air outlet (23) and extends through the air outlet (23); A filter screen (251) is disposed inside the frame (25); The rod (26) is disposed on both sides of the air outlet (23); A connecting rod (232) is disposed on the outer side wall of the air outlet (23) and is rotatably connected to the rod body (26) by a torsion spring; Impact block (262) is disposed on the inner wall of the rod (26).

2. The dust removal device for a concrete mixing plant according to claim 1, characterized in that: The outer wall of the air outlet (23) is provided with a groove (231) that matches the frame (25), and one end of the rod (26) is provided with a limiting block (261) that matches the frame (25).

3. A dust removal device for a concrete mixing plant according to claim 2, characterized in that: The dust removal mechanism (2) is provided with an auxiliary component (3), which includes: A fixing rod (31) is provided on the outer wall of the air outlet (23); The slider (32) is sleeved on the fixed rod (31); A connecting block (33) is disposed at the other end of the rod (26).

4. A dust removal device for a concrete mixing plant according to claim 3, characterized in that: The top of the fixing rod (31) is provided with a fixing block (34), the fixing block (34) is provided with a top rod (35), and the top rod (35) passes through the air outlet (23). A spring (36) is sleeved on the outer wall of the top rod (35).

5. A dust removal device for a concrete mixing plant according to claim 1, characterized in that: The outer wall of the dust collector (21) is provided with a door panel (27), the door panel (27) is connected to the dust collector (21) by a hinge, and the outer wall of the dust collector (21) is rotatably connected with a limiting block two (271) that cooperates with the door panel (27).

6. A dust removal device for a concrete mixing plant according to claim 1, characterized in that: The dust collection box (21) is provided with an inner cover (28), which is a cylindrical upper structure and a frustum lower structure.

7. A dust removal device for a concrete mixing plant according to claim 6, characterized in that: The air inlet (211) and the air outlet (23) are connected through the inner cover (28).

8. A dust removal device for a concrete mixing plant according to claim 7, characterized in that: The dust collection box (21) is equipped with a spraying assembly (4), which includes: A water pipe (41) passes through the dust collector (21) and the inner cover (28), and is rotatably connected to the dust collector (21) via a torsion spring; A nozzle (42) is disposed at the bottom of the water pipe (41); Fixing block two (43) is provided on the outer wall of the water pipe (41); An auxiliary rod (44) is disposed on the top of the second fixing block (43); Limiting block three (45) is disposed on the outer side wall of the dust collector (21).

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